Home / 3,086.60-4,629.90-1,355.72

Finding the Fourth Proportional to 3,086.60, 4,629.90 and 1,355.72

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Solution

The fourth proportional to 3,086.60, 4,629.90 and 1,355.72 is: 2,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.60 : 4,629.90 = 1,355.72 : x
  2. Step 2: Convert to fraction form
    3,086.60/4,629.90 = 1,355.72/x
  3. Step 3: Cross multiply
    3,086.60x = 4,629.90 × 1,355.72
  4. Step 4: Simplify right side
    3,086.60x = 6,276,848.03
  5. Step 5: Solve for x
    x = 6,276,848.03/3,086.60
  6. Step 6: Final answer
    x = 2,033.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.